Unit 16Unit 16Scientists at workScientists at workBy FrankAncient Greece static electricity1745 Leyden jar 1880 Electrical bulb (Edison)1923 Television1943 Computer1989 World-wide web1993 Human embryos cloned1997 Dolly, the sheep, the first cloned animalA list of some important Discoveries & InventionsStatic electricityLeyden jar ( 莱顿瓶 ) EdisonLife without electricity Benjamin Franklin (1706-1790) Statesman, scientist, inventor, publisher of the Pennsylvania Gazette, member of the Continental Congress and the Constitutional Convention, signer of the Declaration of Independence, first U.S. Postmaster General, American commissioner to Paris.Pre-reading Find the words that fit the descriptionsc______ lead or guide (sb. /sth.)c______ amount of electricity put into a battery or contained in a substancep______ show that sth is true or certain by means of argument or evidence( 证据 )t______ pull (sth) forcibly apart or away or to piecesf______ firmly attach sth to sth or two things togethere______ make sth clear or easy to understanda______ become visibleonducthargeroveearastenxplainppearWhile-reading Look at the textbook and listen to the tape carefully, then try to complete the following chart.Task 1NameTimeAttendeePurposeThings neededA record of the experimentKite ExperimentFranklin and his sonLightning and electricity are the same.a kite, a key, some really bad weather and a condenserIn June 1752Task 2Read the text quickly and try to get the main idea of each paragraph.to make a special kite for the experiment?should be done to get ready for the experiment?to do the experiment with a kite, a key and a condenser?did Franklin succeed in doing the experiment?did Franklin do the experimentWhyFranklin’s famous kite experimentPara...
